"These outrageous allegations are simply false," he said in the statement. "I have been transparent and truthful about these vile claims, but I will not further engage publicly with a coordinated smear campaign."

Sanders made it clear that Porter's resignation had nothing to do with his job performance.

“Rob Porter has been effective in his role as staff secretary. The president and chief of staff have full confidence in his abilities and his performance,” Sanders said.

Both ex-wives reportedly told their accounts to the FBI.

Many White House aides were reportedly shocked by the allegations against Porter because of his mild-mannered personality.